System panic with "kernel BUG at mm/slub.c:3686!" at RIP kfree by module vxfen

Solution Verified - Updated -

Issue

  • System crashed with error "kernel BUG at mm/slub.c:3686!" at RIP kfree with module vxfen loaded.
[12293820.756682] ------------[ cut here ]------------
[12293820.761872] kernel BUG at mm/slub.c:3686!
[12293820.763043] invalid opcode: 0000 [#1] SMP 
[12293820.763866] Modules linked in: nfs lockd grace fscache vxfen(POE) llt(POE) iptable_filter vxgms(POE) vxodm(POE) vxglm(POE) gab(POE) vsock_diag unix_diag af_packet_diag netlink_diag udp_diag tcp_diag inet_diag dmpaa(POE) vxspec(POE) vxio(POE) vxdmp(POE) rdma_cm iw_cm ib_cm ib_core vxcafs(POE) vxportal(POE) fdd(POE) amf(POE) vxfs(POE) vmw_vsock_vmci_transport vsock veki(POE) sunrpc vfat fat ppdev ext4 vmw_balloon mbcache jbd2 sb_edac iosf_mbi crc32_pclmul ghash_clmulni_intel aesni_intel lrw gf128mul glue_helper ablk_helper cryptd joydev pcspkr vmxnet3 vmwgfx ttm drm_kms_helper syscopyarea sysfillrect parport_pc sysimgblt fb_sys_fops parport drm sg nfit libnvdimm drm_panel_orientation_quirks vmw_vmci binfmt_misc ip_tables xfs libcrc32c sr_mod cdrom sd_mod crc_t10dif crct10dif_generic ata_generic pata_acpi
[12293820.768298]  crct10dif_pclmul crct10dif_common crc32c_intel serio_raw vmw_pvscsi ata_piix libata dm_mirror dm_region_hash dm_log dm_mod [last unloaded: llt]
[12293820.770091] CPU: 7 PID: 31282 Comm: CoordPointAgent Kdump: loaded Tainted: P           OE  ------------   3.10.0-957.10.1.el7.x86_64 #1
[12293820.771009] Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 04/05/2016
[12293820.771937] task: ffff9716086dd140 ti: ffff9713def90000 task.ti: ffff9713def90000
[12293820.772869] RIP: 0010:[<ffffffffb881c18c>]  [<ffffffffb881c18c>] kfree+0x13c/0x140
[12293820.773796] RSP: 0018:ffff9713def93da0  EFLAGS: 00010246
[12293820.774713] RAX: 002fffff00000000 RBX: ffff97134e7301c8 RCX: 0000000000000046
[12293820.775636] RDX: 002fffff00000000 RSI: 0000000000000282 RDI: ffff97134e7301c8
[12293820.776556] RBP: ffff9713def93db8 R08: 000000000a746573 R09: 627365705f65736c
[12293820.777472] R10: 7562697274746120 R11: ffffcb666339cc00 R12: 0000000000000000
[12293820.778389] R13: ffffffffc128c423 R14: 0000000000000000 R15: 0000000000000001
[12293820.779305] FS:  00007f0e4652c700(0000) GS:ffff9716bfdc0000(0000) knlGS:0000000000000000
[12293820.780212] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[12293820.781117] CR2: 00007f0e4e24c710 CR3: 0000000b8c714000 CR4: 00000000003607e0
[12293820.782065] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[12293820.782973] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[12293820.783857] Call Trace:
[12293820.784741]  [<ffffffffc128c423>] vxfen_ioc_eject_out_of_clust+0xa3/0x670 [vxfen]
[12293820.785646]  [<ffffffffb87ec0fd>] ? handle_mm_fault+0x39d/0x9b0
[12293820.786549]  [<ffffffffc129583f>] vxfen_ioctl+0x1df/0x690 [vxfen]
[12293820.787417]  [<ffffffffc12976cb>] vxfen_linux_ioctl+0x7b/0x200 [vxfen]
[12293820.788275]  [<ffffffffb8856880>] do_vfs_ioctl+0x3a0/0x5a0
[12293820.789134]  [<ffffffffb8d70608>] ? __do_page_fault+0x228/0x500
[12293820.789976]  [<ffffffffb8856b21>] SyS_ioctl+0xa1/0xc0
[12293820.790818]  [<ffffffffb8d75ddb>] system_call_fastpath+0x22/0x27
[12293820.791647] Code: 49 8b 03 31 f6 f6 c4 40 74 04 41 8b 73 68 4c 89 df e8 e9 3b fa ff eb 84 4c 8b 58 30 48 8b 10 80 e6 80 4c 0f 44 d8 e9 28 ff ff ff <0f> 0b 66 90 0f 1f 44 00 00 55 48 89 e5 41 57 49 89 ff 41 56 41 
[12293820.793418] RIP  [<ffffffffb881c18c>] kfree+0x13c/0x140
[12293820.794265]  RSP <ffff9713def93da0>

Environment

  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 9
  • Veritas Cluster Suite
  • vxfen kernel module

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